7th Grade Science Guide

7.2: Changes to Earth 3 Dimensions & Progressions

Unit 3

●​ I can map and create a profile of a simulated seafloor.

●​ Students are given a simulated seafloor and

●​ Lesson Plan ●​ Trash can/bucket ●​ Wire screen (1 cm openings) ●​ Finger Paint/ Food Coloring/Ink ●​ Water ●​ 25 cm piece of string will small weight attached to one end ●​ Masking tape ●​ Marker ●​ Graph paper and pencil ●​ Data sheets ●​ Meter stick ●​ Various non-floating objects, such as rocks, bricks, a bowl, etc.

use tools to simulate how scientists map the ocean floor.

Activity: Seafloor Spreading

Objective

Overview

Materials

●​ I can create a model to show seafloor spreading

●​ Students construct a paper model that will

●​ Lesson Plan

illustrate how the seafloor spreads at mid-ocean ridges and is consumed where it descents into trenches.

Activity: Gizmos - Building Pangea

Objective

Overview

Materials

●​ Learn the names of major landmasses. ●​ Explain the theory of continental drift. ●​ Fit the landmasses together to form an ancient supercontinent called Pangaea.

●​ The Building Pangaea

●​ Gizmo

Gizmo allows students to explore the fit of the continents that inspired the theories of continental drift and plate tectonics